Technical field(s) of expertise: The goal of my research in quantitative aquatic ecology is to support management, conservation, and restoration of water systems. I use statistical approaches such as multiple regression and boosted regression trees to quantify the effects of environmental stressors on fish and invertebrate populations and communities. This work has focused on the highly diverse fish and mussel communities in rivers of the eastern United States. I also develop mid-complexity models, including metapopulation models, to consider spatial effects of stressors, for example, the response of fish across river systems to changes in temperature and flow. These models can guide decisions on where in the landscape to allow development, and where to conserve or restore habitat. For complex questions such as bioaccumulation in lake foodwebs and effects of eutrophication-related hypoxia on estuary biota, I apply ecosystem models; I also work in teams to link models for land, water, and ecology into integrated modeling systems. We evaluate the effects of landscape and climate scenarios on these systems and the ecosystem services they provide. Overall, I strive to provide a quantitative understanding of aquatic ecosystems as the scientific basis for more effective environmental management for watersheds, states, and regions. Due to my expertise, I was involved as an expert in the IPBES assessment of scenarios and models of biodiversity and ecosystem services.

Technical field(s) of expertise: water, sanitation, hygiene, health and environment ,health mmergency

Technical field(s) of expertise: Pollination Biology, Pollination networks, Wild Bees, Honey Bees, and Community ecology; Involved as an expert in IPBES assessment on Pollinators, Pollination and food Production.

Technical field(s) of expertise: Nature Based Solutions Voluntary Carbon Markets Climate Finance Biodiversity Finance

Technical field(s) of expertise: Agroecology; Forest management; Applied ecology; Climate adaptation

Technical field(s) of expertise: Climate change and sustenable Developpment ; Conservation and restauration ecosystems ;

Technical field(s) of expertise: Ecosystem Services and Valuation

Technical field(s) of expertise: Urban Ecology

Technical field(s) of expertise: Bees; pollinators; ecology; agriculture; biodiversity; GIS; analytics; citizen science

Technical field(s) of expertise: Botanic, plant diversity, agroforestry and ecosystem services